Summation of day lengths versus increasing day lengths as the external stimulus for gonadal recrudescence and fat deposition in migratory birds.
WOLFSON
A
A
D000818:Animals; D001717:Birds; D005223:Fats; D006066:Gonads / Q000502:physiology*; D009424:Nervous System Physiological Phenomena; D010829:Physiological Phenomena; D012008:Recurrence
D005223:Fats